evtchn: convert per-channel lock to be IRQ-safe
authorJan Beulich <jbeulich@suse.com>
Tue, 22 Sep 2020 14:14:56 +0000 (16:14 +0200)
committerJan Beulich <jbeulich@suse.com>
Tue, 22 Sep 2020 14:14:56 +0000 (16:14 +0200)
commit2ee270e126458471b178ca1e5d7d8d0afc48be39
tree9de9642b7f5a28feb25d543aafa2c6d058e633a5
parent9b9fc8e391b6d5afa83f90271fdbd0e13871e841
evtchn: convert per-channel lock to be IRQ-safe

... in order for send_guest_{global,vcpu}_virq() to be able to make use
of it.

This is part of XSA-343.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Julien Grall <jgrall@amazon.com>
xen/common/event_channel.c